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Related publications (29)

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Sensitivity Analysis of Medium Frequency Transformer Design

Drazen Dujic, Marko Mogorovic

This paper discusses the technical challenges and trade-offs tied to design of medium frequency transformers (MFTs) for medium-voltage (MV) high-power (HP) power electronic applications, namely emerging solid state transformers (SSTs). A detailed analysis ...

IEEE2018

Transient Impedance of Interconnected Wind Turbine Grounding Systems

Farhad Rachidi-Haeri, Marcos Rubinstein, Antonio Sunjerga, Quanxin Li

Wind turbines are very vulnerable to lightning because of their height, sharp edges and remote locations often with low soil conductivity. In this paper we present numerical simulations of the impedance of a typical wind turbine grounding geometry. We anal ...

IEEE2018

Vacuum circuit breaker modelling for the assessment of transient recovery voltages: Application to various network configurations

Mario Paolone, Carlo Alberto Nucci

Vacuum circuit breakers (VCBs) are widely used for medium voltage applications when low maintenance, long operating life, and large number of allowable switching cycles are required. The accurate estimation of the transient recovery voltages (TRVs) associa ...

Elsevier2018

Control of Battery Storage Systems for the Simultaneous Provision of Multiple Services

Mario Paolone, Fabrizio Sossan, Emil Namor

In this paper, we propose a control framework for a battery energy storage system to provide simultaneously multiple services to the electrical grid. The objective is to maximise the battery exploitation from these services in the presence of uncertainty ( ...

2018

Evaluation of Power System Lightning Performance—Part II: Application to an Overhead Distribution Network

Farhad Rachidi-Haeri

The paper aims at defining a methodology to evaluate the lightning performance of a system of overhead distribution lines. As is well known, the evaluation of the lightning performance relies generally on a Monte Carlo approach that generates many differen ...

Institute of Electrical and Electronics Engineers2017

Dynamic Assessment of Source–Load Interactions in Marine MVDC Distribution

Drazen Dujic, Francisco Daniel Freijedo Fernández, Uzair Javaid

Medium-voltage direct-current (MVDC) distribution is a possible replacement due to the advancements in power electronic technologies, for existing medium-voltage ac distribution on ships. The new systems based on MVDC are expected to increase fuel efficien ...

Institute of Electrical and Electronics Engineers2017

Medium Frequency Transformer Design and Optimization

Drazen Dujic, Marko Mogorovic

This paper describes the technical challenges tied to modeling and design optimization of the medium frequency transformer (MFT) for power electronic applications, namely emerging solid state transformers (SSTs). A detailed analysis and modelling of the ph ...

2017

Interactions Between Bandwidth Limited CPLs and MMC Based MVDC Supply

Drazen Dujic, Francisco Daniel Freijedo Fernández, Alexandre François Christe, Uzair Javaid

With the improvement in the power electronic technologies, medium voltage dc (MVDC) electrical distribution systems are being considered for on-shore and off-shore applications. These future MVDC electrical distribution systems are expected to provide the ...

2017

Medium Voltage DC-DC Converter for Power Collection Links : A Multistage Stacked Boost Architecture

Gina Kristin Steinke

Nowadays electrical energy generation is an important topic discussed in the society. Since technologies like wind or solar energy generation are most of the time placed far away from the city centres one point to focus on is the transmission of the energy ...

EPFL2017